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Naturally occurring manganese (25 Mn) is composed of one stable isotope, 55 Mn. Twenty-seven radioisotopes have been characterized, with the most stable being 53 Mn with a half-life of 3.7 million years, 54 Mn with a half-life of 312.3 days, and 52 Mn with a half-life of 5.591 days.
This page lists radioactive nuclides by their half-life.
Manganese is a chemical element; it has symbol Mn and atomic number 25. ... Several radioisotopes have been isolated and described, ranging in atomic weight from 46 u ...
Pages in category "Isotopes of manganese" The following 40 pages are in this category, out of 40 total. This list may not reflect recent changes. ...
Iron-55 decays via electron capture to manganese-55 with a half-life of 2.737 years. [1] The electrons around the nucleus rapidly adjust themselves to the lowered charge without leaving their shell, and shortly thereafter the vacancy in the "K" shell left by the nuclear-captured electron is filled by an electron from a higher shell.
This list of nuclides shows observed nuclides that either are stable or, if radioactive, have half-lives longer than one hour. This represents isotopes of the first 105 elements, except for elements 87 (), 102 and 104 (rutherfordium).
used in radioisotope thermoelectric generators (RTGs) and radioisotope heater units as an energy source for spacecraft Plutonium-239: 94: 145: 24,110 y: α: 5245 Synthetic: used for most modern nuclear weapons Americium-241: 95: 146: 432 y: α: 5486 Synthetic: used in household smoke detectors as an ionising agent Californium-252: 98: 154: 2.64 ...
This page uses the meta infobox {{Infobox isotopes (meta)}} for the element isotopes infobox.. This infobox contains the table of § Main isotopes, and the § Standard atomic weight.